Borzoi (/ˈbɔrzɔɪ/, literally Russian for "fast"), or Russian Wolfhound, are large Russian sighthounds that can generally be described as "larger, long-haired greyhounds" and come in virtually any color except blue dilute. The long top-coat is silky and quite flat, with varying degrees of waviness or curling. In its texture and distribution over the body, the borzoi coat is unique. There should be a frill on its neck, as well as feathering on its hindquarters and tail. Borzoi males frequently weigh more than 100 pounds. Males stand at least 30 inches at the shoulder, while the height of females is around 26 inches. Despite their size, the overall impression is of streamlining and grace, with a curvy shapeliness and compact strength.

One of the favorites is the slender girl in the cloche walking with a borzoi who is as thin as she.